Summary

• The presence of a specific receptor defines the target cells for a given hormone.

• Receptors are proteins that bind specific hormones and generate an intracellular signal (receptor-effector coupling).

• Some hormones have intracellular receptors; others bind to receptors on the plasma membrane.

• Hormones are synthesized from a number of precursor molecules, including cholesterol, tyrosine per se, and all the constituent amino acids of peptides and proteins.

• A number of modification processes alter the activity of hormones. For example, many hormones are synthesized from larger precursor molecules.

• The complement of enzymes in a particular cell type allows for the production of a specific class of steroid hormone.

• Most of the lipid-soluble hormones are bound to rather specific plasma transport proteins.

Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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